The lowest gas prices in years are seen Wednesday on a fuel sign in Lawrence, Kan. A day later, OPEC decided to maintain current production levels, virtually ensuring continued low prices at the pump.
Orlin Wagner/AP
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In Britain, a new bus running between Bath and the Bristol airport uses biomethane for power. The gas is derived from human sewage and food waste.
Wessex Water/GENeco
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Pipes for Transcanada Corp.'s planned Keystone XL oil pipeline are stacked at a depot in Gascoyne, N.D. The House of Representatives approved the Keystone XL pipeline Friday; the Senate voted against it on Tuesday.
Andrew Cullen/Reuters/Landov
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GOP Rep. Bill Cassidy and Democratic Sen. Mary Landrieu face off in a Dec. 6 Senate runoff. Both are pushing for legislation approving the remaining leg of the Keystone XL pipeline between Alberta, Canada, and Steele City, Neb.
Gerald Herbert/AP
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Pipes for TransCanada's planned Keystone XL pipeline are stored in Gascoyne, N.D. The U.S. House has voted to approve the proposed project, which would allow crude oil to flow from Canada to the Gulf of Mexico. The Senate plans to vote Tuesday on legislation that would greenlight the project.
Andrew Cullen/Reuters/Landov
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Sen. Mary Landrieu, D-La., chair of the Senate energy committee, spoke Wednesday about getting congressional approval for the Canada-to-Texas Keystone XL pipeline. With her is Sen. Joe Manchin, D-W.Va., a member of the committee.
J. Scott Applewhite/AP
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Democratic U.S. Sen. Mary Landrieu of Louisiana walks through the U.S. Capitol on Wednesday. Congress returned to work following last week's midterm elections break. Landrieu is locked in a runoff with Republican Rep. Bill Cassidy.
Mark Wilson/Getty Images
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Beacon Power President and CEO Barry Brits, at the company's plant in Hazle Township, Pa. He says a loan from the Department of Energy made it possible for his company to develop its flywheel energy storage technology.
Jeff Brady/NPR
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